cconoly

This plugin lets you specify certain CSS classes and IDs to be hidden. You can specify titles or anything via CSS selectors to be removed.
It can be enabled on a per page basis.
Edit all the pages and posts at once within the Settings Page or individually while you edit the post or page.
Credits for idea and functionality go to Wayne (Simply Landscapes)

WP-HideThat

Hide certain classes and IDs on some or all of your pages and posts.

powerhousemuseum

Plugin to make it easy to embed thumbnails and popup descriptions of thousands of objects from the Powerhouse Museum collection of technology, design and social history in your WordPress blog. The plugin supports both in-post and sidebar widget implementations and a variety of filtering and display methods.
The Powerhouse Museum’s online collection is full of objects that you may want to incorporate into your blog. This plugin uses the <a href="http://api.powerhousemuseum.com/" title="http://api.powerhousemuseum.com/" rel="nofollow ugc">Powerhouse API</a> and a jQuery popup for displaying the objects in summary view.
Using the plugin you can display a grid of objects in a post or as a sidebar widget. The size and number of objects as well as the grid layout can be easily customised as well as the search variables.

Powerhouse Museum Collection Image Grid

Plugin to allow embedding of object thumbnails and descriptions from the Powerhouse Museum collection of technology, design and social history.

WP-HideThat vs Powerhouse Museum Collection Image Grid